No it's just the background music, sound effects and such coming
waaay forward so as to drown out the dialog. This effect goes through
all these tv dvds of Star Trek series. If the background mood music
cuts out from a scene change or the 'engine noise' disappears from
some other cut, the dialog is heard normally.
I would think this problem would normally be associated with a
subwoofer. There is a subwoofer out on my Yamaha but it is
not in use. I've never noticed such a problem from the old
days of running vhs tape nor on radio/tuner or audio stream
from line in etc.